bike carbs
Turbo Mini Forums

want to put twin carbs on my mini im just wondering if my idea would work
basically i was going to buy a set of bike carbs an then take 2 of the 4 away therefor leaving two carbs an making a custom inlet an having twin bike carbs ?
would this work an what sort of carbs would i need i.e gsxr 600 ,r1,gsxr750 ??

Drop A Gear An Floor It

have a look at Adam1340's (think that's his name) build thread. he did something like that. Bogg brothers made hte manifolds etc for him.

What capacity is it ?
What cam is it ?
Is it boosted ?

I would go for the smaller capacity bike carb as it is the valve area that counts in power and those have much more.

The smaller the carb, the more torque low down but obviously you don't want to compromise peak power ...

But actually, lots of bike have depression carb in the SU style.
Maybe it would be better with some pumper carbs but they are not found often (at least in good nick).

Why not go for a set of Hif 38 on a minispares Vizard based manifold ?
Much cheaper and the superiority of the bike setup as to be proven ...

Rusty by nature

sorry its just a standad 998 at the moment but next 6 months should be getting a nice 1340 Med enginering engine :)

Drop A Gear An Floor It

dont be scared of the Bike carb route. I use one on my setup and I wouldn't go back to an SU... My version:

- no more dash pot oil
- The internals are plastic
- they have a moveable needle via a circlip
- They have changeable jets for 1/4 and full throttle.
- The spindle is butter flyd at the factory
- They have a built in ram pipe tuned for the carb

Issues:
- You will need to have a manifold made
- you will need to make a throttle pickup
- you will need to make a throttle stop
- you will need to make a choke pickup

You will need a setup by a rolling road that is familiar with bike carb conversions so they know how to tune them, but then there are quite a few cars that use them as a mod..

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

if you dont mind me asking what bike carb are you using ?
what sort of performance inhancement am i going to get (when correctly set up)
an what are fuel costs like
thanks
oo an do you have any pics ? please

Edited by minimad01 on 21st Jul, 2010.

Drop A Gear An Floor It

It's a 38 mm from a fireblade. A quick note it's not used to accept boost as I have an evil supercharger setup.
The carb won't add power unless your current one is taking it away. Fuel cost will depend on more than the carb

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

It's a 38 mm from a fireblade. A quick note it's not used to accept boost as I have an evil supercharger setup.
The carb won't add power unless your current one is taking it away. Fuel cost will depend on more than the carb

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Balls

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!

Nice signature Graham

I'm tentatively looking at the possibilities for fitting bike carbs to a 7 port set up (Pierce Manifolds). Ultimately I'd rather inject it, but buying the head right now would be enough of a stretch.

The engine is an ACDodd 1330 with a Kent 266 running on a lightly modified gearbox. As the engine is in a Midas I need carbs that can be mounted horizontally and are as low in profile as possible.

Any suggestions?

fitting I think :)

I run a supercharger and I don't care the TB is on the wrong side.
VEMS + 12 PSI + Liquid Intercooler = Small Bore FUN!